Question

Find the lateral area and surface area of the following figure

Answer 1

Answer:

Ok so there's only one figure but Nvm

The lateral surface area of a Cone

=> πrl

Where,

$l = \sqrt{h {}^{2} + r {}^{2} }$

Here,

r= 3 inches

l= 8.5 inches

.°.

The required answer

=>

$3.14 \times 3 \times 8.5 \\ = 80.07 \: inches \: {}^{2}$

Note :The Length( lateral height) is already given

Answer 2

Answer:

lateral surface area of cone =πrl=3×8.5π=80.11in²

total surface area of cone =πr(r+l)=π×3(3+8.5)=108.38in²